in the Coal Formation at Wardie. 153 



to the following genera : Amhlypterus, Palaonisctis, Eurynotus, 

 Acanthodes, and Pygopterus of M. Agassiz. 



Genus I. Amhlypterns. Three species are found here, viz. 

 Amblyptenis str'mtus, nemoptenis, and punctatus. Of these 

 three species, the most common is certainly the punctatus, and 

 this accords with the opinion of Lord Greenock and M. Agas- 

 siz. The striatiis may be mentioned as next in point of abun- 

 dance, and it constitutes the majority of those fish found in a 

 disjointed condition. 



The specimen which I now exhibit to the Society, is also 

 to be referred to the genus Amblypterus, but to no species 

 M'hich I have as yet seen described. It is about four inches 

 long, and very broad around the thorax. The head seems to 

 have been very large in comparison to the size of the fish, the 

 body of which tapers gradually till it reaches the base of the 

 tail, which is very small. The tail itself, as well as all the fins, 

 are of great size, and this, in my opinion, constitutes the chief 

 distinguishing marks of this species. So large, indeed, is the 

 caudal fin, as to give the tail quite a symmetric appearance, as 

 will be seen in the present specimen. The anal fin is also very 

 long, more especially at its anterior position. The fins are com- 

 posed of pretty coarse rays, the divisions of which are consider- 

 ably separated. It is not at all common in this place. 



II. Genus Palaoniscus. Of this genus there is only one spe- 

 cies which I have noticed, ^'iz. the strioJattis, and it in general 

 occurs very well preserved. 



Genus III. Euryiiotus presents us with the most beautiful 

 and perfect examples of fossil fish which I have as yet seen 

 preserved ; and another circumstance which adds greatly to their 

 interest is the species to which I allude being quite characteris- 

 tic of the locality. This genus was a new one to M. Agassiz 

 when he came to Scotland, and it constitutes a connectins link 

 between the Platymmus and Amblypterus. The Eurynotu-s 

 Jimbriatus is figured by the above named author from War- 

 die. Unfortunately, however, he does not seem to have had 

 specimens exhibiting perfect scales. There is no difficulty in re- 

 ferring the present specimens to that species. 



There is a species of this fish, however, which it may be 



